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Find a graph that is used in the news (online). Provide the website and three insights that you have about the graph. Think of a pair of variables that has a strong linear relationship, either positive or negative. Then find data that you think supports your assertion. Share your variables and determine your r-value.
Of the physics graduates at a university, 30% had a starting salary of $30,000 or more. If five of the graduates are selected at random, find the probability that all had a starting salary of $30,000 or more.
A 400-V DC shunt motor has ?eld and armature resistances of respectively 100 and 0.1 Ω. If the motor absorbs 40 kW from the electric grid, calculate the line, armature, and ?eld current.
What decision would an optimist make? Why?
The lifetime of a disk drive head is normally distributed with a population mean of 1000 hours and a standard deviation of 120 hours. Determine the probability that the lifetime for 9 disk drives will exceed 940 hours.
Determine whether the following are demonstrative definitions, enumerative definitions, definitions by subclass, synonymous definitions, etymological definitions or operational definitions.- "Dessert" means something such as pie, cake, cookies, o..
Construct appropriate control charts for before and after introduction of the new pathway. Discuss process stability and the results.
For the corresponding exponential distribution, and x = minutes until the next arrival, identify the mean of x and determine the P(x
Determine the least-squares regression line and interpret its slope. Estimate the net income if the operating revenue figure is $2500 million.
In statistics, How would you interpret the direction of the line in which all data points fall on the diagonal line? for correlation.
Presumably, the headline refers to all registered voters in the state, not just those in the samples. Considering the margin of error accompanying each poll, do you agree with the headline? Explain.
there are 20 questions on the test. responces are ab c and d. each question is 5 points and only one response is
Calculate a 95% confidence interval for the population percentage. Write a sentence that interprets this confidence interval for somebody who knows little about statistics.
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